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无机盐对APEC(Na)微乳相图的影响 被引量:9
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作者 李宜坤 赵福麟 杨鹏 《油田化学》 CAS CSCD 北大核心 2003年第1期50-53,共4页
为寻求可用于高温高盐油藏提高采收率的表面活性剂,在30℃,60℃和90℃下研究了4种无机盐分别对烷基酚聚氧乙烯醚羧酸盐APEC(Na)形成微乳液相图的影响。APEC(Na)中烷基为辛基,氧乙烯基数为6。实验用水相体积5mL,含APEC(Na)0.4g,异丁醇0.8... 为寻求可用于高温高盐油藏提高采收率的表面活性剂,在30℃,60℃和90℃下研究了4种无机盐分别对烷基酚聚氧乙烯醚羧酸盐APEC(Na)形成微乳液相图的影响。APEC(Na)中烷基为辛基,氧乙烯基数为6。实验用水相体积5mL,含APEC(Na)0.4g,异丁醇0.8g及一种无机盐,油相为相同体积的煤油。得到了4个油水体系在3个温度下的相图共12幅。在30℃时4个体系均不形成中相微乳液。在60℃时在很宽的盐含量范围形成中相微乳液,对于含NaCl、KCl、CaCl2、MgCl2的油水体系,最佳含盐量分别为130、115、230、182g/L,在低含盐量下出现下相微乳液。在90℃时形成中相微乳液的体积分数增大,含盐量范围变窄,最佳含盐量分别为100、85、100、75g/L,在低和高含盐量下分别出现下相微乳液和上相微乳液。这一结果说明APEC(Na)具有优异的抗Na+、K+、Ca2+、Mg2+的能力,可耐受的温度应在90℃以上,因而可用作高温高盐高硬度油藏驱油的表面活性剂。根据本实验结果,在测绘微乳液相图时温度是一个必须考察的因素。图12参7。 展开更多
关键词 烷基酚聚氧乙烯羧酸 驱油用表面活性剂 微乳状液 相图 无机 最佳盐含量
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Study on the Effects of Probiotics on the Growth of Cyprinus carpiod and Water Quality 被引量:1
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作者 Wanqing GUO Lidan BAI +3 位作者 Hai WANG Xiaowei LI Wei SHI Shuo SUN 《Agricultural Science & Technology》 CAS 2015年第6期1183-1186,1266,共5页
[Objective] The aim was to discuss the effects of probiotics on the growth of Cyprinus carpiod and water quality. [Method] Taking C. carpiod as the research object, probiotics were supplemented in the fodder and water... [Objective] The aim was to discuss the effects of probiotics on the growth of Cyprinus carpiod and water quality. [Method] Taking C. carpiod as the research object, probiotics were supplemented in the fodder and water to study their effects on the growth of C. carpiod and water quality. [Result] Probiotics had promoting effects on the growth of C. carpiod and its optimum dosage was 6%. pH, ammonia nitrogen content and nitrite content in water body in experimental groups were all lower than those in control group. [Conclusion] Compound probiotics had a broad application foreground in the aquatic breeding industry. 展开更多
关键词 Cyprinus carpiod PROBIOTICS GROWTH Ammonia nitrogen NITRITE
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